1. Measure the temperature and humidity, and an alarm will be issued if there is an abnormality
2. Using flame retardant engineering shell material, smoke and oil proof
3. Operating temperature: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)
4. Speaker sound intensity: 85-105dB
5. Protocol: IEEE 802.11b/g/n
6. Power supply mode: USB charging / 2 CR123A (not included)
7. Voltage: 5V
8. Power: 5W
9. Current: 1A
10. Size: About 6.8 x 6.8 x 3cm
11. Weight: About 72g